Method for applying cement between a shoe upper and a shoe insole

ABSTRACT

There is disclosed herein a cement lasting machine having mechanism for applying cement to the periphery of an insole that is mounted to the bottom of a last and for wiping the margin of an upper located on the last against the insole to thereby cementatiously attach the upper margin to the insole.

1451 Apr. 4, 1972 United States Patent Kamborian et al.

54] METHOD FOR APPLYING CEMENT 58 Field ofSearch....................12/142 R, 142 F, 145, 10.1,

BETWEEN A SHOE UPPER AND A SHOE INSOLE [72] Inventors: Jacob S. Kamborian, West Newton; Allen UNITED STATES PATENTS C. Harriman, Brockton; Karl F. Vornberger, Tewksbury, all of Mass.

Kamborian .12/145 [73] Assignee: Jacob S. Kamborlan, Boston, Mass.

[22] Filed: Mar. 6, 1970 Related US. Application Data [62] Division of Ser. No. 664,475, Aug. 30, 1967, which is Primary Examiner-Patrick D. Lawson Attorney-Albert Gordon [21] Appl. No.1

[57] ABSTRACT There is disclosed herein a cement lastin mechanism for applyin 3 machine having g cement to the periphery of an insole a dmslonpf 1966' that is mounted to the bottom ofa last and for wiping the mar- 3,422,474. gin of an upper located on the last against the insole to thereby cementatiously attach the upper margin to the insole.

[52] U.S.Cl............,................................12/142R,118/225 [51] Int. Cl. 9/00 6 Claims, 35 Drawing Figures PATENTEDAPR 41912 3,653,089

sum 020F 14 5% II /008 1006 9/1 FIG. '2/

PATENTEDAPR 4|972 3,653,089

SHEET O30F 14 PATENTEDAPR 4 m2 SHEET UQUF 14 690 I I 6 672 I 6 862 PATENTEDAPR 41972 3,653,089

SHEET new 14 PATENTEUAPR 41972 3,653,089

sum 07UF 14 PATENTEUAPR 41912 3,653,089

sum near 14 PATENTED PR we 3,653,089

SHEET OSUF 14 PATENTEUAPR 4 I972 SHEET MM 14 FIG. 25 4 PATENTEDAFR 4 I972 SHEET 120F 14 FIG. '26

PATENTEBAPR 41972 I 3,653,089

sum mar 14 METHOD FOR APPLYING CEMENT BETWEEN A SHOE UPPER AND A SHOE INSOLE This is a division of application Ser. No. 664,475 filed Aug. 30, 1967 which in turn is a division of Ser. No. 520,430 filed Feb. 18, I966. The latter application has matured into U.S. Pat. No. 3,422,474.

This invention relates to the lasting of shoes by supporting a shoe assembly that comprises a last having an upper mounted thereon and an insole located on its bottom and wiping the margin of the upper against the insole.

The invention is concerned with the application of cement into the corner formed between the margin of the upper and the insole preparatory to wiping the upper margin against the insole. A nozzle is provided that is brought to bear into the corner while it is forced against the insole. The nozzle is caused to travel along the insole while forced outwardly against the upper margin and while its force against the insole is maintained and cement is extruded from the nozzle during its travel.

In the accompanying drawings:

FIG. 1 is a side elevation of a machine for practicing the invention;

FIG. 2 is a front elevation of a portion of the machine showing an arrangement for supporting the show assembly;

FIG. 3 is a view take on the line 3-3 of FIG. 2;

FIG. 4 is a view taken on the line 4-4 ofFIG. 3;

FIG. Sis a vertical section ofa heel section ofthe machine;

FIG. 6 is a view taken on the line 66 ofFIG.

FIG. 7 is a view taken on the line 7-7 of FIG. 5;

FIG. 8 is a view taken on the line 8-8 of FIG. 7;

FIG. 9 is a view taken on the line 99 ofFIG. 7;

FIG. 10 is a view taken on the line 10-10 ofFlG. 7;

FIG. 11 is a view taken on the line 11-11 of FIG. 6;

FIG. 12 is a view taken on the line 12-12 ofFIG.11;

FIG. 13 is a view taken on the line 13-13 ofFlG. 5;

FIG. 14 is a view taken on the line 14-14 ofFIG. 13;

FIG. 15 is a plan view of a nozzle mounting arrangement;

FIG. 16 is a view taken on the line 16-16 ofFIG. 15;

FIG. 17 is a view taken on the line 17-17 of FIG. 16;

FIG. 18 is a view taken on the line 18-18 ofFIG. 17;

FIG. 19 is a view taken on the line 19-19 ofFIG. 17;

FIG. 20 is a plan view ofa cement pot;

FIG. 21 is a view taken on the line 21-21 ofFIG. 20;

FIG. 22 is a view taken on the line 22-22 of FIG. 20;

FIG. 23 is a view taken on the line 23-23 of FIG. 20;

FIG. 24 is a view taken on the line 24-24 of FIG. 20;

FIG. 25 is a representation of the shoe assembly as it appears in the machine immediately prior to an application of cement to the insole;

FIG. 25A is a view taken on the line 25A-25A of FIG. 25;

FIG. 25B is a view taken on the line 25B-25B of FIG. 25;

FIG. 26 is a representation of the shoe assembly as it appears in the machine when cement is about to be applied to the heel and shank portions of the insole;

FIG. 26A is a view taken on the line 26A-26A of FIG. 26;

FIG. 26B is a view taken on the line 26B-26B ofFIG. 26A;

FIG. 27 is a circuit diagram ofa part ofthe control circuit of the machine; and

FIGS. 28 through 30 are representations of the shoe assembly as it appears in the machine at different stages of the wiping operation.

As seen in FIG. 1, the machine includes a frame 10in which are mounted a toe section 12 for pulling over the upper on the last and for wiping the toe, forepart and ball portions of the upper margin against the insole and a heel section 14 for wiping the heel and shank portions of the upper margin against the insole. The frame incorporates a base 16 that has a sleeve 18 extending downwardly therefrom. For convenience of operation, the machine is inclined downwardly in a direction extending from the toe section 12 towards the heel section 14. However, parts extending in the direction of the plate 16 will hereafter be referred to as extending horizontally and parts extending in the direction of the sleeve 18 will hereafter be referred to as extending vertically. The operator is intended to be located to the left of the machine as seen in FIG. 1, and a direction extending toward the operator (right to left in FIG. 1) will be referred to as forward while a direction extending away from the operator left to right in FIG. 1) will be referred to as rearward.

The toe section 12 includes an air operated motor 20 that is secured to a cap 22 at the bottom of the sleeve 18. Referring to FIGS. 2-4, a toe post 24 is secured to the piston rod (not shown) of the motor 20 to extend vertically and be slidable within the sleeve 18. A toe post extension 36 is secured to the upper end of the post 24. A bar 38, which serves as an insole rest mount, is mounted between a bearing plate 40 and gibs 42 that are secured to the post extension 36. A pivot pin 48, located at the top of the bar 38, extends through a prong 50 at the top of the bar. A lug 52 extending rearwardly of the pin 48 has forwardly directed legs 54 (see FIG. 4) that straddle the prong 50 and are pivoted on the pin 48. A toe insole rest 56 extends upwardly of the rear end of the lug 52. A pair of legs 58 are pivoted on the pin 48 outwardly of the legs 54. A crossbeam 60, extending between the legs 58, has a pair of forepart insole rests 62 extending upwardly thereof. A leaf spring 64, secured to the front of the top of the bar 38 by screws 66, has upwardly extending limbs 68 and 70 that respectively bear against the legs 54 and 58 to yieldably urge them clockwise (FIG. 3) about the pin 48 to thereby yieldably urge the insole rests 56 and 62 downwardly. A ledge 72 on the bar 38 bearin g against the lug 52 limits the downward movement of the insole rest 56. A bolt 74, threaded into the bar 38 and bearing against the cross-beam 60, limits the downward movement of the insole rests 62.

A rearwardly extending ledge 76 of the post extensions 36 has a hanger 78 depending therefrom. An air operated motor 80 is pivoted to the hanger 78. The piston rod 82 of the motor 80 is pivoted to a link 84, and the link 84 is pivoted to a pair of toggle links 86 and 88 (see FIG. 3). The link 88 extends downwardly of the link 84 and is pivoted to the post extension 36 while the link 86 extends upwardly of the link 84 and is pivoted to a slide 90 that is guided for vertical movement by the post 36 and the bearing plate 40. A mount 92 is secured to the slide 90 and has a pair of front prongs 94 and a rear prong 96 extending upwardly thereof. Upwardly extending compression springs 98 are seated in each of the prongs 94, 96. Each of the springs 98 bears against a rod 100 to yieldably urge the rods upwardly. Pins 102 in the rods 100 ride in slots 104 in the prongs 94, 96 and normally bear against the tops of the slots to limit the extent of upward movement of the rods 100.

The pins 102 are connected by way of pin and slot connection 106 (FIG. 3) to a bracket 108. A ferrule 110 extends through and is secured to the bracket 108 and extends through an applicator-support 112 that rests on the bracket 108. The applicator-support 112 comprises a base section 114 that lies beneath the lug 52 and an upwardly extending and forked extruding and support section 116 that has a pair of legs 118 diverging forwardly and downwardly from an apex 120. The extruding section 116 lies outwardly of the lug S2 and insole rest 56. The section 116, which has a configuration corresponding to the margin of the toe portion of the insole of the shoe to be lasted, is secured to the bracket 108 by a nut I22 threaded onto the ferrule 110 and by aligning pins 124. A groove 126 is provided in the top of the extruding-support section 116 and a plurality of holes 128 intersect the groove 126 and extend downwardly therefrom. The holes 128 intersect channels 130 (FIGS. 3) in the top of the base section 114. The ferrule 110 has holes 132 and 134 therein that are in commu nication with the channels 130. A strut 136, secured to the undersurface of the bracket 108, has a passage I38 therein that is in communication with the hole 132. An adapter on the forward end of the strut 136 has a hollow, flexible conduit 142 secured thereto. A passage 144 in the adapter 140 provides communication between the passage 138 and the conduit 142. An electric heating element 146 in the bracket 108 is provided to heat the applicator-support 112. The conduit 142 is made of a tube that is thermally and electrically insulative and has an electric resistor wire 148 running therethrough that is connected to a source of electrical energy.

The heel section 14 is shown in FIGS. 5-14.

Referring to FIGS. 5 and 6, a vertically extending hollow housing 516 is secured to the frame forwardly of the toe section 12. A fluid actuated motor 518 is pivoted to and extends upwardly of a clevis 520 that is bolted to the bottom of the housing 516. A sleeve 522, located within the housing 516, is slidably guided for vertical movement by way of a plurality of tracks 524 in the sleeve that receive rolls 526. The rolls 526 are secured to the housing 516 and extend inwardly thereof. The piston rod 528 of the motor 518 is secured to a plate 530, and a heel head 532 is bolted to the plate 530.

A slide plate or primary plate 534 is slidably mounted for forward and rearward movement in the heel head 532 between gibs 536 and plates 537 bolted to the heel head 532 (FIG. 6). A pair of fluid actuated motors 538 are secured to the heel head 532 (FIGS. 5 and 6). The piston rods 540 of the motors 538 are each secured to a hanger (not shown) that depends from the slide plate 534, whereby the plate 534 may be moved forwardly and rearwardly by actuation of the motors 538.

A pair of lugs 552 and 553 (FIG. 13) located above the slide plate 534 have guide rolls (not shown) depending therefrom that are received in slots 544 formed in the slide plate. The rear end of an adjustment plate 556 is mounted to the lugs 552 'and 553 by pins (not shown). A guide roll 558 (FIG. 14 is received in a slot in the front of the slide plate 534. A bolt 562, that is threaded into the roll 558, has a cap 564 at its upper end. A pin 566, secured to the cap 564 and extending laterally thereof, is received in slots 568 in the front of the adjustment plate 556.

Referring to FIGS. 5, l3 and 14, a heel rest housing 606 is mounted in gibs 608 formed at the rear of the adjustment plate 556. A heel rest 610 is mounted in the housing 606 for heightwise movement.

Referring to FIGS. 13 and 14, a pair of upstanding lugs 650 are formed on the adjustment plate 556 and a pin 652 extends inwardly of each lug 650. A brace 654 is pivoted on and extends between the pins 652. A pin 656 extends forwardly from the center of the brace 654 and the rear ofa back-up plate 658 is mounted to the pin 656. The front of the back-up plate 658 is mounted to a pin 660 that extends rearwardly from a strap 662 that in turn is mounted to the adjustment plate 556.

Referring the FIGS. 5, 11 and 12, a cover plate 672 is located spacedly above and is bolted to the back-up plate 658 by means that include the blocks 674 and the bolts 676 shown in FIG. 11. A pair of symmetrically disposed heel wiper cams 678 are slidably mounted between the back-up plate 658 and the cover plate 672 and heel wipers 680 having rearwardly divergent surfaces 681 that diverge rearwardly from a vertex 683 are attached to the cams 678. Pins 682, dependent from the cover plate 672, extend into slots or cam tracks 684 and 686 formed in the wiper cams 678. A cam slide 688 is located forwardly of the wiper cams 678 between the back-up plate 658 and the cover plate 672 and is slidably guided for rearward and forward movement on gibs 690 (FIG. 6) that depend from the cover plate 672. A pair of links 692 are pivoted to and diverge rearwardly from the cam slide 688 with the rear ends of these links each being pivoted to a wiper cam 678. A bracket 694 straddles and is bolted to the back-up plate 678 and cover plate 672 on each side of the machine. An air actuated motor 696 is secured to each bracket 694, and the piston rod 698 of each motor 696 is pivotally connected to a lug 700 that extends outwardly of the cam slide 688 by a pivot pin 702. The motors 696 can thus effect the movement of the cam slide 688 on the gibs 690.

Referring to FIGS. 7 and 9, a bracket 704 is rigidly clamped on each side of the machine between the rear portions of the back-up plate 658 and the cover plate 672 by a bolt 706. A mount 712 is mounted to each bracket 704. An air actuated motor 736 is mounted to each mount 712, and a shank wiper 746 is secured to the piston rod of each motor 736.

The heel section 14 includes a heel clamping mechanism that has many features in common with the heel clamping mechanism disclosed in pending application Serial Number 478,185 filed August 9, 1965.

Referring to FIGS. 5 and 7-10, a bracket 754 is bolted to the cover plate 672. A bolt 756 is threaded into the bracket 754. Rearwardly of the bracket 754, the bolt 756 is rotatably mounted in a heel clamp plate 758 with a pair of rings 759 preventing axial movement of the bolt in the clamp plate. The clamp plate 758 and the below described heel clamping mechanism carried thereby may be adjusted forwardly and rearwardly in gibs 760 in the cover plate 672 by manipulation of the bolt 786. Bolted to the front of the clamp plate 758 is a transversely extending bracket 762. An air actuated motor 764 is pivoted to each end of the bracket 762 on pins 766. A pair of arms 768 are pivotally mounted to pins 770 which are secured to the rear end of the clamp plate 758. A shoulder 772 is provided on the clamp plate 758 forwardly of the pins 770 to limit the extent that the arms 768 may pivot in a forward direction. When at rest, the arms 768 are maintained in abutment with the shoulder 772 by means of tension springs 774 which at one end are connected to the bracket 762 and at the other end are connected to clips 776, the clips 776 being rigidly fastened to the outer extremities of the arms 768 by bolts 778. A pair of sliding links 780, having longitudinal slots 782 formed at their midportions, have lateral flanges 784, the flanges 784 being pivoted to clevises 786 by pins 788 and the clevises 786 being rigidly secured to the piston rods 790 of the motors 764. The links 780 are also movably connected to the arms 768 by means of engagement of the slots 782 and the bolts 778 so that activation of the motors 764 to cause their piston rods 790 to move rearwardly will cause the links 780 to have substantially linear rearward motion, being guided by the bolts 778. During the rearward motion of the links 780, the bolts 778 and consequently the arms 768 are rigidly maintained in their forward position by means of the tension springs 774. Another link 792 is pivotally mounted to each of the arms 768 by means of pins 794 which are secured to the arms 768 at their midportions. The other end of each link 792 is pivotally mounted to the front of a link 780 by a pin 796 so that as the motors 764 impart substantially linear rearward motion to the links 780, rotary motion about the pins 794 will be simultaneously imparted to the links 792. A bolt 798 is threaded into a lug 800 of each arm 768 in such a manner that it is in registry with the plane of rotation of the links 792 so that as the links rotate in response to actuation of the motors 764 they will abut the forward ends of the bolts 798 thereby terminating the substantially rearward linear movement of the links 780 and causing the arm 768, the link 780 and the link 792 to become rigid with respect to each other. When such a rigid relationship occurs, further actuation of the motors 764 to cause further rearward motion of the piston rods 790 will cause the arms 768, the links 780 and the links 792 to rotate as rigid units about the pins 770 overcoming the tension of the springs 774, with the motors 764 swinging about the axes of the pins 766.

A heel clamp pad 806, formed from a yieldable material such as rubber, is mounted to the rearward end of the heel clamping mechanism in the manner described below. The pad 806 is a substantially U-shaped member having a bight 808 and a pair of legs 810 extending rearwardly from the bight.

Mounted to and extending rearwardly from each of the links 780 are a pair of vertically spaced plates 812 and 814 which cooperates with lugs 816 that extend from the pad legs 810 between the plates 812, 814. Secured to the outside of each of the pad legs 810 are a pair of vertically spaced studs 818. Exteriorly of each pad leg 810, there is provided an outer plate 820 have an inner plate 822. The plates 820, 822, which have their rearward ends abuttingly secured together and their forward ends horizontally spaced, have horizontal slots 824 formed at their rearward abutting ends for accommodation of the studs 818. The lugs 816 are secured to each of the outer plates 820 and the plates 820, 822 are urged rearwardly against the studs 818 by means of a spring 826 which is fastened to the studs 818 and bent around the lug 816. A band 828, formed from a relatively unyieldable material, is confined at its ends in the space formed between the forward portions of the plates 820 and 822 and is secured to the plates. The band 828 extends about the outer periphery of the clamp pad 806.

A pair of tabs 830 are inserted between the pad 806 and the band 828 on opposite sides of the pad bight 808. Each tab 830 has a shelf 832 overlying the pad 806. A lug 834 (FIGS. 5 and 8) is slidably mounted for forward and rearward movement between a pair of brackets 836 (FIG. 10) that are attached to the rear end of the clamp plate 758. The lug 834 extends between the heel wipers 680 and a bolt 838 threaded between the brackets 836. The lug 834 has forks 840 (FIG. 7) that extend exteriorly of the band 828. Rivets 842 secure the forks 840, band 828 and tabs 830 to each other. A shelf 844 is connected to each inner plate to extend inwardly over a pad leg 810. Thus the pad 806 is restrained against heightwise movement between the heel wipers 680 and the shelves 832,844. The pad legs 810 are secured to the links 780 by way of pins 846 that extend through holes in the plates 812,814 and the lugs 816.

The heel pad 806 has a hollow interior (FIG. 5) and a fitting 848 and air line 850 provides communication between a source of compressed air and the interior of the heel pad 806.

A cable 896 (FIG. 1) is attached on each side of the machine to a hanger 898 (FIG. 6) dependent from a brace 870 that is mounted to the slide plate 534 by bolts 872. Each cable 896 extends rearwardly from a hanger 898 and then about and downwardly of a pulley 900 that is rotatably mounted on the base 16. The ends of the cables remote from the hangers 898 are each connected to a tension spring 902 that is fastened to the frame 10.

Referring to FIGS. land -19, a U-shaped frame 906 is provided that comprises a cross-piece 908 and a pair of legs 905 extending forwardly and divergently from the ends of the cross-piece. The frame 906 is rigidly secured to the top of the housing 516 by way of bolts 907 that fasten flanges 904 at the front ends of the legs 905 to the housing. A ferrule 910 is secured in an enlarged portion 912 at the center of the crosspiece 908. A hollow, flexible conduit 914, constructed similarly to the conduit 142, is secured to the ferrule 910. An electric resistor wire 916', connected to a source of electric energy, runs through the conduit 914. A link 918 is pivoted on a hub 920 extending laterally from each of the flanges 904, each of the links 918 extending rearwardly from a hub 920. A sleeve 922 is welded to the rear of each link 918 and a transversely extending bar 924 is rotatably mounted in each sleeve 922. A forwardly directed bar extension 926 that acts as a nozzle support is formed at the inner end of each bar 924 and a nozzle 928 is rotatably mounted on each bar extension 926 for inward and outward swinging movement.

A link 930 is splined to each bar 924 by a key 932 and a link 934 is rotatably mounted on each bar 924. The links 930 and 934, which respectively constitute the front and rear segments of a linkage, are adjustably and rigidly secured to each other by way ofa spring-pressed detent (not shown) in each link 934 that is insertable into a selected one ofa plurality of holes 936 formed in each link 930. Thus the bars 924, bar extensions 926, links 930 and links 934 are mounted for movement in unison. A spring-return air activated motor 938 is mounted at the upper end of each link 930. The inwardly directed piston rod 940 of each motor 938 is in alignment with a nozzle 928. A pair of tension springs 942, extending between each link 930 and each nozzle 928, serve to resiliently urge the nozzles against the piston rods about the axes of the bar extensions 926. The lower, rear end of each link 934 is pivoted on a pin 944. A pair of clevises 946 and 948 are also pivoted on each pin 944. The clevises 946 extend forwardly of the pins 944 and are each secured to the piston rod 950 of an air actuated motor 952. Each motor 952 is pivoted to a hanger 954 that is secured to and depends from a link 918. The clevises 948 extend downwardly of the pins 944 and are each secured to the piston rod 956 of an air actuated motor 958. Each motor 958 is pivoted to the housing 516. A conduit arrangement 960 extends through the frame 906 and the links 918, bars 924, bar extensions 926 and nozzles 926 to provide communication between the conduit 914 and the nozzles 928.

As shown in FIGS. 2, 3 and 15, a wire 962 is bolted to and extends forwardly of each front prong 94, the wire 962 constituting a back nozzle rest formed of spaced back rest elements 962a and 96212.

As shown in FIGS. 13 and 14, a U-shaped wire 964, which constitutes a front noule rest formed of spaced front rest elements 964a and 964b, is soldered to a plate 966 that is bolted to the rear of the housing 606 by a screw 612. The wire 964 extends rearwardly of the plate 966.

A cement pot 968 is secured to each side of the machine frame, one of these cement pots being shown in FIG. 1 and the other cement pot not being shown. One of the cement pots is adapted to supply molten thermoplastic cement to the extruding section 116 of the applicator-support 112 and the other of the cement pots is adapted to supply molten thermoplastic cement to the nozzles 928.

The cement pots 968 are constructed similarly to the cement pot disclosed in pending application Ser. No. 475,525 filed July 16, 1965. Referring to FIGS. 20-24, each cement pot includes upstanding walls 970 that bound a well 972. A shaft 974 extending transversely over the well, is rotatably mounted in a pair of hangers 976 that are secured to the walls 970. A pair of cover plates 978 and 980 are pivotally mounted on the shaft 974 to overlie the well 972. A lever 982, secured to the shaft 974 to extend downwardly of the exterior of the cement pot, is pivoted to a block 984 by a pin 986. The block 984 is secured to the piston rod 988 of an air actuated motor 990 and the motor 990 is pivoted to a flange 992 that is secured to the cement pot 968. A stop stud 994, that is threaded into a lug 996 of the cement pot, is in alignment with the block 984. A handle 998, that is mounted on the pin 986 and is secured to the lever 982 by a screw 1000, extends downwardly of the block 984. A lever 1002 is pinned to the shaft 974 and extends downwardly thereof into the well 972 through a slot 1004 in the floor of the well. A prong 1006 at the bottom of the lever 1002 extends into a clevis 1008 formed in a plunger 1010 and the plunger is slidably mounted in a bore 1012 located in the cement pot below the well 972. A ferrule 1014 is threaded into a hole in the floor of the well forwardly of the lever 1002. The ferrule has radial passages 1016 that intersect a centrally located small diameter passage 1018. The passage 1018 opens into a large diameter passage 1020, the passage 1020 intersecting the bore 1012. A ball 1022, resting on a pin 1024 extending across the passage 1020, is cooperative with the passage 1018 to act as a valve in the manner described below. An adapter 1026 is threaded into the cement pot at the forward end of the bore 1012. A passage 1028 extending through the adapter is normally blocked by a spring pressed ball valve 1030. A coupling 1032 is secured to the adapter 1028. Electric heating elements 1034 and 1036 (FIG. 23) are secured to the cement pot 968 and are controlled by a thermostat 1038 (FIG. 20) that extends beneath the well 972.

The end of the conduit 142 remote from the applicator-support 112 is secured to the coupling 1032 of one of the cement pots 968 and the end of the conduit 914 remote from the nozzles 928 is secured to the coupling 1032 of the other of the cement pots 968.

In the idle condition of the machine: the motor 20 and the insole rests 56, 62 carried thereby are in a raised condition; the motor is in the FIG. 3 position so that the applicatorsupport 112 is in an upper position urged to a level slightly higher than the level of the insole rests 56, 62 by the springs 98; the piston rod 528 is retracted into the motor 518 to maintain the heel head 532 and the parts carried thereby in a lowered position; the piston rods 540 are retracted into the motors 538 so that the slide plate 534 and the parts carried thereby are in a forward position; the piston rods 698 are retracted into the motors 696 so that the cam slide 688 is in a forward position with respect to the back-up plate 658 and cover plate 672 and the heel wipers 680 are retracted into their forward, open position; the motors 736 maintain the shank wipers 746 in their outer positions; the piston rods 790 are retracted into the motors 764 to maintain the heel clamp pad legs 810 in their most open position; there is no air entering the heel clamping pad 806 through the air line 850 so that the pad 806 is in a deflated condition; and the piston rods 940 are projected outwardly of the motors 938, the piston rods 950 are retracted into the motors 952 and the piston rods 956 are retracted into the motors 958, whereby the nozzles 928 are in a lowered, rearward position and are resiliently urged against the spaced rest elements 962a and 962!) of the back nozzle rest 962 by the piston rods 940 is indicated in FIG. 15.

Before starting the machine, solid thermoplastic cement is placed in the wells 972 of the two cement pots 968 wherein the cement melts and flows through the passages 1016, 1018 and 1020 into the bores 1012 between the plungers 1010 and the adapters 1026 and into the passages 1028 up to the ball valves 1030. The handles 998 are then manually oscillated to move the plungers 1010 forth and back from the FIG. 21 position to a forward position determined by the settings of the studs 994. This causes the molten cement in one of the cement pots to be forced through conduit means that comprises the passage 1028, the conduit 142, the passage 138 (FIG. 3), the holes 132 and 134, the channels 130 and the holes 128 (FIG. 4) until the molten cement appears at the tops of the holes 128. The cement is kept molten in the conduit means between the cement pot 968 and the holes 128 by suitably located heating devices that include the resistor wire 148 and the heating element 146. The oscillation of the handle 998 for the other of the cement pots 968 causes the molten cement in that pot to be forced through the passage 1028 for that pot, the conduit 914 and the conduit arrangement 960 until the cement arrives at the tops of the nozzles 928. The cement is kept molten between the nozzles 928 and the cement pot 968 associated with the nozzles by suitably located heating devices that include the resistor wire 916, heating elements 1042 in the frame 906 (FIG. 17), heating elements 1044 in the links 918 (FIG. 16) and heating elements 1046 in the nozzles 928 (FIG. 19).

A shoe assembly is presented bottom-down to the machine. The shoe assembly, comprises a shoe insole 1048 located on the bottom of a last 1050, preferably by being tacked thereto, and a shoe upper 1052 draped loosely over the last (see FIGS. 25, 25A and 258). The insole is brought to bear against the top of the applicator-support 112, which at this time is resiliently urged above the level of the insole rests 56,62 by the springs 98 so that the applicator-support 112 bears against and supports the margin of the toe portion of the insole.

The operator now actuates the control system of the machine by stepping on a platform 1054 (FIG. 1). By mechanism fully disclosed in the aforementioned application Ser. No. 528,430 filed Feb. 18, 1966, the toe and forepart portions of the upper are stretched about the last in such a manner that the topline 1056 (FIG. 25) of the upper is stretched tightly on the last, the heel portion of the upper is stretched tightly about the heel end of the last and the shank portions of the upper extend tautly between the heel portion and the forepart portions. During this operation the applicator-support 112 is caused to move downwardly against the forces of the springs 98 until the insole 1048 comes into engagement with the insole rests 56,62 to enable the insole to be supported at the margin of its toe and forepart portions by the applicator-support and to be supported interiorly of its margin by the insole rests.

Now motors 352, one of which is shown in FIG. 1, are actuated to raise piston rods 350 to thereby bring a toe hold-down 356 down against the forepart of the shoe assembly. After this, a slide plate in the toe section 12 is caused to move forwardly to thereby bring toe wipers 414, ball wipers 500 and a yoke 426 to a position where they can act on the shoe assembly. This is followed by a lowering of the toe wipers 414. the ball wipers 500 and the yoke 426 to a position wherein the wipers 414 and 500 are below the level of the bottom of the insole an amount that is approximately equal to the thickness of the margin of the upper 1052. During its descent, the yoke 426 engages the upper 1052 and causes the upper to snugly conform to the shape of the last 1050. The hold-down 356 continues to bear against the top of the forepart of the shoe assembly during the descent of the yoke 426.

At this time the shoe assembly engaging parts for the toe and forepart of the show assembly assume the position shown in FIGS. 25, 25A and 258.

Now the motors 538 are actuated to move the piston rods 540 rearwardly. This causes rearward movement of the slide plate 534 together with the heel wipers 680, the heel clamp pad 806, the shank wipers 746, the heel rest 610 and a heel hold-down 890 that is mounted to the braces 870 (FIG. 1) until a length sensing pin 856 (FIGS. 7, 8 and 10) that is pivotally mounted on the brackets 836 engages the heel portion of the shoe assembly. The parts are so constructed that when the slide plate 534 stops its rearward movement the heel wipers 680 and the heel clamp pad 806 are adjacent to. but not in engagement with, the heel portion of the shoe assembly. The springs 902, attached to the cables 896 which in turn are attached to the slide plate534, act to apply a yieldable rearward force to the rearwardly and upwardly inclined plate 534 and thereby enable the motors 538 to more easily move the slide plate rearwardly although the force applied by the springs 902 is not sufficient to move the slide plate prior to the actuation of the motors 538.

After this the motor 518 is actuated to raise its piston rod 528. The rising piston rod 528 carries with it the heel head 532, the heel rest 610, the heel wipers 680, the heel clamp pad 806, the shank wipers 746 and the heel hold-down 890 until the heel rest 610 engages the heel portion 1068 of the insole 1048. The parts are so constructed that when the piston rod 528 terminates its upward movement the tops of the heel wipers 680 are approximately level with the bottom of the insole heel portion 1068, preferably being spaced below the in sole an amount that corresponds to the thickness of the margin of the heel portion of the upper 1052.

Now the motors 764 are actuated to move their piston rods 790 rearwardly. This causes the links 780 to first have substantially linear rearward motion and then rotary motion about the axes of the pins 770, as described above. Due to the connections described above between the links 780 and the pad legs 810 and the slidable mounting of the lug 834 between the brackets 836, the linear movement of the links 780 causes the bight 808 of the pad 806 to move rearwardly into engagement with the heel end extremity of the shoe assembly and the legs 810 of the pad 806 engage the upper along the sides of the last to push the engaged portions of the upper rearwardly from the heel end of the shoe assembly in the direction of the toe end of the shoe assembly. During the rotary motion of the links 780 the pad legs 810 are moved inwardly to cause the pad 806 to engage the upper and press it tightly against the heel portion of the last.

After this, pressurized air is admitted through the line 850 into the hollow interior of the heel pad 806 to cause the inner peripheral wall of the pad to expand inwardly against the shoe assembly and thus augment the holding and clamping action of the upper against the last by the pad 806.

Now motors 880 (FIG. 1) are actuated to raise piston rods 882 and thus lower the heel hold-down 890 against the top of the cone 1150 (FIG. 25) of the last.

At this time the motors 736 are actuated under relatively low pressure to cause them to move the shank wipers 746 inwardly towards the shoe assembly under relatively low pressure. The tops of the shank wipers 746 are located, at this time, a small amount above the level of the bottom of the insole 1048 so that they move inwardly opposite the inwardly curved reentrant portions 1166 and 1168 (FIG. 25A) of the last to force the shank portions of the upper margin inwardly into these reentrant portions until the upper hugs the reentrant portions with the upper margin depending downwardly of the insole 1048 immediately adjacent the outer periphery of the insole as indicated in FIG. 25B.

The parts at this time assume the position shown in FIGS. 25, 25A and 25B with the portion of the upper margin that extends between the applicator-support 1 12 and the heel and extremity of the shoe assembly bearing against the bottom of the sides of the last immediately adjacent the outer periphery of the insole 1048 and extending downwardly of the insole due to the stretching of the upper about the last in a heel to toe direction that was performed by the toe section 12, the pressing of the heel portion of the upper against the last by the heel pad 806 and the forcing of the upper into the reentrant portions 1166 and 1168 by the shank wipers 746. While the parts are in this position, cement is applied to substantially the entire periphery of the margin of the insole 1048 in the manner described below preparatory to wiping the entire margin of the upper against the insole and attaching the wiped margin to the insole by means of the cement.

To apply the cement to the toe and forepart portion of the margin of the insole 1048, at this time the motor 990 of the cement pot 968 associated with the applicator-support 112 is actuated to move its plunger 1010 forwardly an amount determined by the position of its stud 994 with respect to its block 984 and thereby extrude a predetermined amount of molten cement through the holes 128 and groove 126 of the applicator-support 112 against the bottom of the margin of the toe and forepart portion of the insole 1048 that is equal to the volume of cement that is displaced by its plunger 1010 during its forward movement. The pressures generated during the forward movement of this plunger 1010 unseats its associated valve 1030 to allow the cement to pass from its a associated bore 1012 through its associated adapter 1026 to the applicator-support 112 and also forces its associated ball 1022 upwardly from its associated pin 1024 against its associated ferrule 1014 to block the associated passage 1018 and thus cut off the flow of cement from the associated well 972 into the bore 1012. Subsequently in the machine cycle the motor 990 of this cement pot 968 is actuated to move its plunger 1010 rearwardly and thereby enable its valve 1030 to be reseated and the passage 1020 to reopen. The cement thus deposited on the insole 1048 takes the form of a ribbon 1170 shown in FIG. 26.

At about the same time as the cement ribbon 1170 is applied to the insole 1048, the nozzles 928 are manipulated so as to bear against and deposit molten cement against the margins of the insole in the regions extending heelwardly of the cement ribbon 1170. This is done by concomitantly actuating the motors 962 and 958 to cause their respective piston rods 950 and 956 to project outwardly of the motors and cause the nozzles 928 to move forwardly and upwardly with the piston rods 940 of the motors 938 urging the nozzles inwardly. During this movement the nozzles depart from the back nozzle rest 962 and come into engagement with the spaced rest elements 964a and 964b (FIG. 26B) of the front nozzle rest 964 and move into the angle formed by the margin of the upper 1052 and the insole portion 1068 at the heel end of the shoe assembly at an acute angle to the plane of the bottom of the insole as indicated by the phantom and solid line representations of the nozzles in FIG. 26A. The resilient force afforded by the pressurized air in the motors 952 and 958 enables the nozzles to cease their upward movement upon engaging the insole 1048 and to cease their forward movement upon engaging the heel end extremity of the upper margin. The front nozzle rest 964 is so constructed that at the completion of the movement of the nozzles 928 they are bearing against the front nozzle rest under the yieldable forces of the piston rods 940 with the nozzle tops located contiguous to each other, but not crossing each other, and bearing into the corner of the upper margin and insole at the heel end extremity of the shoe assembly, as indicated in FIGS. 26, 26A and 26B.

Now the motors 952 are actuated to retract the piston rods 950 into these motors while the piston rods 956 continue to be urged upwardly out of the motors 958. At the same time the pressurized air is vented from the motors 938 to retract their piston rods 940 and enable the springs 942 to yieldably urge the nozzles 928 outwardly about the bar extensions 926. At the same time the motor 990 for the cement pot 968 associated with the nozzles 928 is actuated to move the plunger 1010 for this cement pot forwardly and thereby cause molten cement to be extruded through the nozzles in the manner described above in connection with the application of the cement ribbon 1170 to the insole 1048. This results in the noz zles 928 moving rearwardly along the margin of the insole from the heel end extremity of the shoe assembly with the springs 942 causing the nozzles to bear against the margin of the upper that extends downwardly of the insole adjacent the peripheral edge of the insole due to the effects created by the heel clamp pad 806 and the shank wipers 746 as described above. During this rearward movement molten cement is extruded from the nozzles onto the peripheral edges of the insole.

The rearward movement of the nozzles is terminated when they engage the applicator-support 112. The machine control is so coordinated that at this time the block 984 of the cement pot 968 associated with the nozzles 928 engages its associated stud 994 to terminate the extrusion of cement from the nozzles, the motors 958 are actuated to retract the piston rods 956 into these motors to lower the nozzles and pressurized air is returned to the motors 938 to cause their piston rods 940 to again force the nozzles inwardly against the forces applied by the springs 942. The nozzles therefore return to their original position bearing against the front nozzle rest 962. At a subsequent time in the machine cycle the plunger 1010 for the cement pot 968 associated with the nozzles 928 is returned to its original position by its motor 970.

The effect of these movements of the nozzles 928 and the extrusion of the cement therethrough is to apply a ribbon of cement 1172 (FIG. 26) to the periphery of the insole 1048 that extends from the heel and extremity along both sides of the insole and meets the cement ribbon 1170.

During the return of the nozzles 928 to their original positions, a cam 1174 (FIGS. 15 and 16) on the pin 944 intersects and momentarily opens a valve 1176 that is mounted on the machine frame 10. Referring to FIG. 27, the opening of the valve 1176 enables pressurized air to pass from a source S through a line 1178, the valve 1176 and a pilot line 1180 to shift a valve 1182. The shifting of the valve 1182 enables pressurized air to pass from the source S through a line 1184, the valve 1182 and a line 1186 to the motors 696 to actuate these motors to move the cam slide 688 rearwardly. Prior to the shifting of the valve 1182, the motors 696 had been maintained in their original position by pressurized air passing to them from the valve 1182 through a line 1188. The rearward movement of the cam slide 688 causes the heel wipers 680 to move rearwardly and inwardly through their wiping stroke and wipe the upper margin at the heel portion of the shoe assembly against the insole. The cam tracks 684 and 686 are so constructed as to cause the rearward movement of the cam slide 688 to move the heel wipers 680 in a path substantially the same as that disclosed in pending application Serial Number 478,185 filed August 9, 1965. Initially the wipers 680 have both a rearward translatory motion and an inward swinging motion about the vertex 683. As the wiping operation progresses the rearward translatory motion is decreased until it is finally terminated with the inward swinging motion of the wipers 680 continuing after the rearward translatory motion has ceased. These wiper motions are such that the initial translatory motion causes the wiper surfaces 681 to cross under the last in directions that are substantially at right angles to the periphery of the last.

Partway through the heel wiping stroke and after the heel wipers 680 have passed under the insole 1048, a cam 1190, that is secured to the cam slide 688, intersects and opens a 

1. A method of applying cement into the corner formed between the margin of a shoe upper and a shoe insole preparatory to wiping the margin against the insole comprising: supporting bottom-down a shoe assembly that comprises a last having the upper mounted thereon and the insole located on its bottom with a selected portion of the upper bearing against the corresponding portion of the last and the margin of said upper portion extending downwardly of the corresponding portion of the insole; providing a nozzle that is located below the shoe assembly; applying an upward force to the nozzle and a yieldable outward force to the nozzle to cause the nozzle to bear against a first end of said insole portion and to be urged outwardly against the corresponding first end of said margin portion; causing the nozzle to travel along the insole from said first ends of said insole and margin portions to the other ends of said insole and margin portions while said upward and outward forces are maintained so that the nozzle stays in the corner formed by the margin and the insole during its travel; and extruding cement from the nozzle during its travel.
 2. The method as defined in claim 1 wherein the nozzle is initially positioned spacedly below the bottom of the shoe assembly and an inward force is applied to the nozzle that overcomes said yieldable outward force, and further comprising: applying said upward force to move the nozzle from its initial position to a starting position proximate to said first end of the insole portion; and thereafter, while maintaining said upward force, concomitantly releasing said inward force so as to enable said yieldable outward force to be applied to the nozzle and initiating said travel of the nozzle.
 3. A method of applying cement into the corner formed between the margin of a shoe upper and a shoe insole preparatory to wiping the margin against the insole comprising: supporting bottom-down a shoe assembly that comprises a last having the upper mounted thereon and the insole located on its bottom with the side portions of the upper on the opposite sides of the last bearing against the corresponding portions of the last and the margins of said upper portions extending downwardly of the corresponding portions of the insole; providing a pair of nozzles that are located below the shoe assembly; applying an upward force to each nozzle and a yieldable outward force to each nozzle to cause each nozzle to bear against a first end of one of said insole portions and to be urged outwardly against the corresponding first end of one of said margin portions; causing each of the nozzles to travel along the insole from said first ends of said insole and margin portions to the other ends of said insole and margin portions while said upward and outward forces are maintained so that each nozzle stays in the corner formed by its associated margin and the insole during its travel; and extruding cement from each nozzle during its travel.
 4. The method as defined in claim 3 wherein the nozzles are initially positioned spacedly below the bottom of thE shoe assembly and inward forces are applied to the nozzles that overcome said yieldable outward forces; and further comprising: applying said upward forces to the nozzles to move the nozzles from their initial positions to starting positions proximate to said first ends of the insole portions; and thereafter concomitantly maintaining said upward forces, releasing said inward forces so as to enable said yieldable outward forces to be applied to the nozzles and initiating said travel of the nozzles.
 5. The method as defined in claim 4 wherein said starting position is proximate to the heel end extremity of the shoe assembly.
 6. A method of applying cement into the corner formed between the heel and shank portions of the margin of a shoe upper and the corresponding portions of a shoe insole preparatory to wiping the margin against the insole comprising: supporting bottom-down a shoe assembly that comprises a last having the upper mounted thereon and the insole located on its bottom with the heel and shank portions of the upper bearing against the corresponding portions of the last and the margin of said upper portions extending downwardly of the corresponding portions of the insole with the heel of the shoe assembly in a forward position and the toe of the shoe assembly in a rear position; providing a pair of nozzles that are initially located spacedly below the shoe assembly in positions that are forward of the heel end extremity of the shoe assembly; applying yieldable outward forces to the nozzles; initially applying an outward force to each nozzle that overcomes the yieldable outward forces; concomitantly applying an upward force to each nozzle and a forward force to each nozzle to thereby move the nozzles upwardly and forwardly from their initial positions to starting positions wherein the nozzles bear against the insole in positions that are proximate to the heel end extremity of the shoe assembly; thereafter concomitantly maintaining said upward forces, releasing said inward forces so as to enable said yieldable outward forces to be applied to the nozzles, and causing each of the nozzles to travel rearwardly from said starting positions along the insole past the heel and shank portions of the shoe assembly so that each nozzle stays in the corner formed by its associated margin and the insole during its travel; and extruding cement from each nozzle during its travel. 